IN situ, with a few spanners, just copy how they did it on the rally cars.
Basically a threaded rod end in each location point of the arm, the inner one points forwards, so that adjusts your toe(as other point is fixed) the outer joint points upwards so that adjusts the camber.
They welded a tube in each position that the rod end threaded shaft bit passed through.
I have got some piccies somewhere, I may have got the inner/outer mixed up as on the phone at the mo!!
tabetha